Google seems to be either testing or rotating in more aggressive of the Knowledge Panel on mobile to garner reviews and additional location details. I am awaiting Jeremy Stoppleman’s forthcoming hue and cry.
Last week over the cours of the day I saw these three Knowledge Panel presentations for the same location. (These have probably been available for a while but I just noticed it.)Google Testing More Aggressive Review & Content Calls to Action on Mobile Knowledge Panel by Mike Blumenthal